Special Application/
Interlocked Receptacle Switches 19-21
Accessories22-24
Hub and Lug Data25-26
Dimensions Special Application
Safety switches27
Double Throw Switches28-29
Detailed Dimension Drawings30-47
Replacement Parts48
Siemens asked contractors for everything they wanted in an enclosed safety switch.
Their input helped create the toughest, most reliable, most hassle-free enclosed
safety switch in the business—the Siemens Type VBII Safety Switch. It’s a switch
that’s right for any commercial, industrial or special use application. The Siemens
Safety Switch line offers a list of important features that gives contractors
a competitive edge:
• Highly visible, easy-to-grip red handle
• Visible blade construction
• Door that opens greater than 180º
• Quick-make, quick-break mechanism
• 200% optional neutrals (100-600 Amps)
• All copper current-carrying parts on heavy duty switches (except lugs)
• Positive two- and three-point mounting
Ratings
• 30-1200 amps
• 240 and 600 volts AC
• 250 and 600 volts DC
• 100 AlC for general duty switches
• 200 AlC for heavy duty switches
• Design E horsepower rated
• Suitable for use as service equipment
• Provisions for UL Class T, R, J, L and H fuses
• 12X overload rating that exceeds industrystandard of 10X
Fuse Application & Selection49
Fuse Application & Dimensions50-51
Ratings & Test Requirements52-53
Suggested Specifications54-55
Catalog Numbering System56
2
Page 3
One Tough Switch: Siemens Type VBII Safety Switch
closed
in operation
Siemens now offers a complete line
of enclosed switches featuring
unique and innovative designs that
are unparalleled in the industry.
General and Heavy Duty Switches
Feature a Time-Proven Design
Like the time-proven Vacu-Break design,
the Siemens VBII double-break switching action breaks the arc in two places.
This reduces heat generation and
increases switching speed by doubling
the breaking distance. The result is
enhanced performance and increased
longevity. We also provide the most
visible blade design available today.
Unlike conventional knife blade switches, the blades are self-aligning to
ensure positive contact. In addition,
they have no wear and friction point
since the “electrical hinge” has been
eliminated. The result is a very fast,
positive and reliable switching action
for even the most severe applications.
One Tough Switch:
More Rugged and Durable
in Demanding Applications
Siemens engineers tackled the
problem of designing a switch that
would stand up under the most
demanding industrial conditions,
such as those in steel mills and mining
operations. These environments
require a switch that must work
reliably and safely in the midst of
falling liquids, airborne fibers, dust,
metal particles, coolants and other
contaminants.
Tested and Retested
All Siemens safety switches have been
tested not only to meet but to exceed
all UL requirements. These tests
include those for general purpose
enclosed switches and those designed
for more specialized purposes where
applicable. The result is a rugged,
reliable design that will provide
superior performance in a wide
variety of applications.
open
3
Page 4
General and Heavy Duty Features
Siemens Type VBII Safety Switch
Application
General Duty Switches
General Duty Switches are intended for
applications where reliable performance
and continuity of service are needed,
but where duty requirements are not
severe and usual service conditions
prevail. These switches are intended for
use primarily with supply circuits rated
240V AC or less where the available
fault current is less than 100,000A
when used with Class R or T fuses
or 10,000A max. when used with
Class H fuses.
Application
Heavy Duty Switches
Heavy Duty Switches are intended for
use in applications where:
1. Rugged construction, reliable
performance, continuity of service and
ease of maintenance are emphasized
2. Available fault currents higher than
10,000A are likely to be encountered,
such as in manufacturing plants, mass
production industries and commercial,
institutional and other large buildings
served by network systems or
transformers of higher capacities
3. System voltage is 600V AC or DC
max
4. A Type 12 or 4 / 4X enclosure is
required
Short-circuit Withstand Ratings
General Duty Switches
Suitable for use on systems capable of
delivering not more than 100,000 RMS
symmetrical amperes of fault current
when Class R fuses are installed. Also
rated 100,000 AC max. in 200-600A
ratings with Class J and T fuses.
Short Circuit Withstand Ratings
Heavy Duty Switches
Suitable for use on systems capable of
delivering not more than 200,000
➀
RMS
symmetrical amperes of fault
current when Class J or R fuses are
installed except the 800 and 1200A
switches, which are suitable for use on
circuits capable of delivering not more
than 200,000 RMS symmetrical
amperes of fault current when
Class L fuses are installed. 100-1200A
switches with Class T fuses and field
adapter kit are also 200,000 RMS
symmetrical rated.
Fuses
General Duty Switches
Fusible switches will accept
the following UL class fuses:
Class H
Class K
Class R—Class R fuse clip rejecter kits
are required.
Class T—200-600A switches (200A
switches require field adapter kit)
Heavy Duty Switches
Fusible switches will accept
the following UL class fuses:
Class H
Class K
Class R—Class R fuse clip
rejecter kits are required
Class J—240 and 600V switches 600V
switches are field convertible
Class L—800 and 1200A switches only
Class T—100-1200A switches (100 and
200A switches require an adapter kit)
Cover Interlocks
General Duty Switches
Defeatable-cover interlocks on Type 1
switches and 60-600A Type 3R switches
prevent the switch door from being
opened when in the ON position.
Heavy Duty Switches
Defeatable dual cover interlocks are
standard on all heavy duty switches.
Prevents cover from being opened
when switch is in the ON position and
prevents switch from being turned ON
when door is opened.
Padlocks
General & Heavy Duty Switches
Padlockable cover latch and multiple
padlock provisions on handle.
NEMA Specifications
Meets NEMA standard KS-1-1990 for
type GD and HD switches.
4
➀ 100,000 RMS for 60 A compact non-fusible switches.
Page 5
Underwriters’ Laboratories Inc.
Listed by UL under file #E4776 as
enclosed switches and also suitable for
use as service equipment except on
1200A switches on Y systems of more
than 150V to ground.
Meets UL98 standard for enclosed
switches and enclosures
Type 1 switches—general purpose enclosures (Type 1)
Type 3R switches—rainproof enclosures
(Type 3R)
Type 4/4X switches—special purpose
enclosures (Type 4/4X)
Type 12 switches—special
purpose enclosures (Type 12).
Groundable Neutrals
General & Heavy Duty Switches
Switches designed for use on systems
requiring neutrals to have groundable
neutral blocks.
✓✓Clear pivoting line terminal shield
✓✓✓Replacement parts
✓Field addable 200% neutral
➆
✓
➆
✓
✓
✓✓➀Provisions for UL Class J and L fuses
✓✓Metal nameplate
✓✓Aux. switch kit
➃Type 4X with stainless steel interior parts
➄
✓
✓Rolled flange enclosure design (30-200A)
✓UL approved HP ratings for
✓high efficiency motors
✓✓Isolated ground kits
Quick-make, quick-break switching action
Generous wiring gutters that meet UL and
NEC wire-bending space requirements
at 60˚C or 75˚C
UL 486B requirements
compression connectors
(except lugs)
(except 30A general duty)
➀
Provisions for UL Class T, R and H fuses
➀ 400 & 600A fusible, double-throw switches accept only Class J or T fuses.
➁ 30A general duty switches have fuse clips constructed of spring type copper.
➂ Not supplied on 30A outdoor & plug fuse switches.
➃ 30-200A Type VBII in stainless steel enclosures.
➄ 60-200A
➅ 200A general duty switches have aluminum neutral assemblies.
➆ 100-600A GD and 100-1200A HD switches will accept Class T fuses
5
Page 6
Type 1 Enclosure
Siemens Type VBII Safety Switch
Type 1 enclosures are intended for
indoor use primarily to provide
protection against contact with the
enclosed equipment in locations where
unusual service conditions do not exist.
Features
• Tangential knockouts in all
box surfaces (30-600A HD &
60-600 GD)
• Two- and three-point mounting
with top keyhole
• Formed flange enclosure edges
• 180º plus side opening door
• Drawn cover design
for increased durability and
resistance to damage (30-600A)
• Rugged metal handle with a red
insulating grip
• Front operable cover interlock
release with positive rotating
release action (30-1200A
heavy duty and 60-600A
general duty)
• Metal nameplates on all heavy
duty switches
• 30 & 60A Heavy Duty & 60A
General Duty switches have
tangential knockouts which
are UL approved for bonding
conduits for non-service
entrance conductors.
6
Page 7
Type 3R Enclosure
Type 3R enclosures are intended
for outdoor use primarily to provide a
degree of protection against falling rain
and sleet, and must remain undamaged
by the formation of ice on the
enclosure. They are not intended to
provide protection against conditions
such as dust, internal condensation
or internal icing.
Features
• Tangential knockouts in all
box surfaces below lowest
live parts (30-600A)
• Two- and three-point mounting
with top keyhole
• Formed flange enclosure edges
• 180º plus side opening door
• Double overlap enclosure door
top to provide superior
protection against entry of rain
• Type HA hub provision
30A general duty
• Type HS hub provision
(30-200A switches)
• Galvanized steel construction
• Drawn cover design for
increased durability and resistance
to damage (30-200A)
• Rugged metal handle with a red
insulating grip
• Front operable cover interlock
release with positive rotating
release action (30-1200A
heavy duty and 60-600A
general duty)
• Metal nameplates on all heavy
duty switches
7
Page 8
Type 4/4X Enclosure
Siemens Type VBII
Safety Switch
Type 4/4X enclosures are intended for
indoor or outdoor use primarily
to provide a degree of protection against
windblown dust, rain, splashing water
and hose-directed water. They are not
intended to provide protection against
conditions such as internal condensation
or internal icing. Also meets 4X definition
by providing a high degree of protection
against corrosion.
Features (Standard 4X)
• Ground lugs installed as standard
• External mounting feet with
two-, three- and four-point
mounting
• Formed front gasket flange with
continuously welded seams
• Heavy duty front opening
low-profile stainless
steel latches
• Stainless steel enclosure
• Stainless steel interior parts on
30-200A switches
• Formed out enclosure flanges
that prevent liquid entry when
door is open
• Rugged hinge design
• 180º-plus opening door
• Rugged metal handle with a red
insulating grip
• Front operable cover interlock
release with positive rotating
release action (30-1200A
heavy duty)
• Stainless steel nameplate
Features (Non-Metallic 4X)
• External mounting
• Ground lug installed as standard
• Fiberglass reinforced polyester
enclosure
• No external metal parts
• Removable door for easy wiring
• Front operable cover interlock
release with positive rotating
release action
8
Page 9
Type 3R / 12 Enclosure
Type 3R / 3S enclosures are
intended to provide a degree of
protection against windblown dust,
and to allow operation when ice-laden.
They are not intended to provide
protection against conditions such as
condensation or internal icing.
Type 12 enclosures are intended for
indoor use primarily to provide a
degree of protection against dust,
falling dirt and dripping water. They are
not intended to provide protection
against conditions such as internal
Command.
Features
• External mounting feet with
two, three and four-point
mounting
• Formed front gasket flange
• Unique heavy duty front
opening low-profile latches
• Galvanized steel enclosure
• Formed out enclosure flanges
that provide an added degree
of protection against entry
of dust
• Rugged hinge design
• 180º-plus opening door
• 3R / 3S / 12 rating as standard
allows outdoor use
• Rugged metal handle with
a red insulating grip
• Front operable cover interlock
release with positive rotating
release action (30-1200A
heavy duty)
• Metal nameplates on
Type 3S / 12 enclosures
9
Page 10
Type 7 and 9 Enclosure
Siemens Type VBII Safety Switch
Type 7 enclosures are intended
for indoor use in locations classified as
Class I, Groups A, B, C or D as defined in
the National Electrical Code.
Type 9 enclosures are intended for
indoor use in locations classified as
Class II, Groups E, F or G as defined in
the National Electrical Code.
Features
• Molded case switch
available in 30-600A ratings
• Cast aluminum enclosure
• External door clamps
• External mounting feet
• Metal nameplate
10
Page 11
General Duty Switches
Plug Fuse and Special Application Types
Features ƒ
• Compact size
• Visible blade, double-break
switching action
• Quick-make, quick-break
operating mechanism
• Highly visible ON/OFF indicators
• Padlock-off handle feature
• Door padlock provision
• Bondable neutral (where indicated)
• Lugs suitable for copper or
aluminum wire
• 30A cartridge fuse switches rated
100,000 AC with Class R fuses
➀ Dual horsepower ratings: Std.- applies when non-time delay fuses are installed. Max.- applies when time-delay fuses are installed.
➁ These switches are UL-listed for application on grounded B-phase systems.
➂ Height reduced switch with 500 MCM max. wire bending space.
➀ Dual horsepower ratings: Std.- applies when non-time delay fuses are installed. Max.- applies when time-delay fuses are installed.
➁ These switches are UL-listed for application on grounded B-phase systems.
➂ Height reduced switch with 500 MCM max. wire bending space.
➀
367 31 ———— 100250—
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Page 17
Heavy Duty Switches
Horsepower Ratings ➂
Indoor - Type 1Outdoor - Type 3R480 Volt AC600 Volt AC
AmpereCatalogShip.Dwg.CatalogShip.Dwg.
SystemRatingNumberWgt.*Fig.NumberWgt.*Fig.
600 Volt Fusible
2-Pole, 2-Fuse
3-Pole, 3-Fuse 480 Volt AC / 600 Volt AC / 250 Volt DC
3-Pole, 3-Fuse and Solid Neutral480 Volt AC / 600 Volt AC / 250 Volt DC
600 Volt Fusible (For 2-Pole Applications use outside poles of 3-Pole Switches)
2-Pole, 2-Fuse
3-Pole, 3-Fuse
* In pounds (lbs).
➀ 60-200A 3-Pole switches are also rated 600V DC.➄ Indicates oversized enclosure (30A switch in a 60A enclosure or a 60A switch in a 100A enclosure).
➁ Use 3-Pole switch for 200A applications.➅ Height reduced switch with 500 MCM max. wire bending space.
➂ Dual horsepower ratings: Std.- applies when non-time delay fuses are installed. Max.- applies when time-delay fuses are installed.
➃ 600V DC rating and 600V DC HP rating requires two poles to be connected in series.
600 Volt Non-Fusible (Also used for 240V Applications)
2-Pole ➁Type 4 / 4X StainlessType 12 Industrial480 Volt AC / 600 Volt AC / 600 Volt DC
Standard
Cat. No.
30——7 1/2—10—515
HNF261S
60——20—25—1030
HNF262S
100——30—40—2050
HNF263S
40015—50———4050
HNF265S
60015—50———5050
HNF266S
3-Pole 480 Volt AC / 600 Volt AC / 250 Volt DC
* In pounds (lbs)
➀ 60-200A Three-Pole switches are also rated 600V DC.➃ Indicates oversized enclosure (30A switch in a 60A enclosure or a 60A switch in a 100A enclosure).
18
➁ Use Three-Pole switch for 200A application.➄ Compact switch with 100,000 RMS Sym short circuit rating.
➂ 600V DC rating and 600V DC HP rating requires
Special Application /
Interlocked Receptacle Switches
Application
Receptacle Safety Switches provide cord
connection protection of heavy-duty
portable equipment (welders, infrared
ovens, batch feeders, portable conveyors, assembly line fixtures and tools,
refrigerator trucks, etc.) under
load or fault conditions. All receptacle
switches are supplied with 4 prong
receptacles. (3 phase, 3W plus ground)
Description
➀ ➁
Type 12 and 4/4X Receptacle
Safety Switches are available with 3phase, 4-wire grounded type CrouseHinds Arktite™ 2 or Pyle-National
prewired and mounted receptacles
with interlock linkage to the switch
mechanism. Insertion or removal of
the plug is prevented by the interlock
linkage while the switch is in the ON
position. Receptacle prevents operation
of switch if incorrect plug is inserted.
Pyle-National Interlocked Receptacle Switches
3 Poles Fusible and Non-Fusible
Ampere Rating
SwitchRecept.
3030600 (F)HF361JPNHF361SPN23JPD-83046
6060600 (F)HF362JPNHF362SPN28JPD-116046
➀ Arktite™ is a registered trademark of the Crouse-Hinds Company. Plugs are not sold or supplied by Siemens.
➁ Indicates plug with maximum diameter cable bushing.➂ QuelArc™ is a registered trademark of the Pyle-National Company.
➃ In pounds (lb).➄ Ampere rating of both switch and receptacle.
➅ Also rated Type 3R/3S➆ Enclosure is constructed of Type 304 stainless steel.
VoltageCatalogStainless Steel Weight
RatingNumberCatalog Number Std. Pkg.Plug Cat. No.
600 (N-F)HNF361JPNHNF361SPN21
240 (F)HF322JPN––28
600 (N-F)HNF362JPNHNF362SPN27
Type 12Type 12
➆
ShippingAccepts Pyle-National
QuelArc™ ➁➂ Plugs
19
Page 20
Heavy Duty
Special Application 4 & 6 Pole Switches
Application
4 & 6 pole switches are commonly used
as a disconnecting means for twospeed, two-winding motors. Fused
switches provide both over current and
short-circuit protection. Non-fusible
switches normally provide a local
disconnection means for two-speed
motors, which are remote from their
motor controller. 4 pole switches are
also used in 3-phase, 4-wire circuits
when a switching neutral is required.
All 4 & 6 pole switches are service
entrance rated.
Description
4 & 6 pole switches are available in 30200A ratings and in both fusible and
non-fusible versions; 4-pole switches
are supplied with either Type 1 or Type
12/3R enclosures. 6-pole switches are
available with either Type 12/3R or
Type 4X stainless steel enclosures.
Standards
• UL & CUL listed under File#E4776
• Meets UL98 for enclosed switches
• 4 & 6 pole switches are suitable
for use as service entrance
• Meets NEMA Standard KS-1 for
enclosed switches
• Meets NEC wire bending space
requirements
Features
• Visible blade, double break
switching action
• Highly visible ON/OFF indication
• Defeatable dual cover interlock
• Padlockable in OFF position
• All copper current carrying parts¿
• Tangential knockouts (Type1,
4-pole switches)
• Type 12 & 4X switches are
provided with an equipment
ground kit as standard
4 Pole Type VBII Switches
Indoor Type 1Type 12/#R Industrial Horsepower Ratings
➀ Lugs are aluminum alloy as standard. Optional copper body lugs are available.
➁ All 4 & 6 pole VBII switches are suitable for use as service equipment when a neutral is installed or equipment ground kit is properly connected.
➂ Dual horsepower ratings: Std. – applies when non-time-delay fuses are installed. Max – applies when time delay fuses are installed.
➃ Fusible switches accept Class H fuses as the standard. Class R & J fuses can also be installed and increase the rating from 10,000 to 200,000 AIC.
For Class J, the load base is moved upward. For class R fuses, rejection kits are required.
Page 21
Heavy Duty
Special Application Switches / Non-Metallic
Application
operating temperatures and is supplied
with a continuous memory retaining
Siemens Non-Metallic Safety Switches
have fiberglass reinforced polyester
enclosures, which are extremely
resistant to a wide range of corrosive
atmospheres that can be encountered
gasket for a superior seal against entry
of water, dust and other contaminants.
The excellent insulating properties of
fiberglass virtually eliminate problems
caused by internal condensation.
in waste-water treatment plants and
certain other industrial applications.
All switches are load break rated and
are provided with an equipment ground
Description
kit as standard. Class R fuse clip kits and
auxiliary switch kits are also available.
30-200A, 600V Max, fusible and nonfusible switches are available in Type 4X
enclosures. The fiberglass-reinforced
enclosure allows a wide range of
Horsepower Rating - 3-Phase250600
AmpereCatalog240 Volt AC480 Volt AC600 Volt ACVolts Volts
➀ Neutrals not included. Order neutral kit when required.
➁ Order molded case switch and enclosure separately.
600V DC rating and 600V DC HP ratings require (2) poles to be connected in series.
➂
Number MaximumEnclosureEnclosure
15-60EA27
21
Page 22
General and Heavy Duty
Accessories
Copper Lug Kits
Heavy duty switches are UL approved to accept field
installed copper lug kits.
Copper Lug Kits
Switch Copper Lug
AmpereKit Catalog
RatingNumberDescription
30-60HLC612(9) Lugs / Kit #14-6 AWG (1)/Ø
100HLC63(9) Lugs / Kit #14-1/0AWG (1)/Ø
200HLC64(9) Lugs / Kit #6 Awg-300 Kcmil (1)/Ø
400-1200HLC65678(1) Lug / Kit # 1/0 Awg-600 Kcmil Cu
Equipment Ground Kits
Equipment Ground Lug Kits are available for all General and Heavy Duty
Switches. They are field installable in Type 1 and Type 3R Switches and
are factory installed as standard in
Type 4/4X and Type 12 Switches.
Equipment Ground Kits
Switch
AmpereCatalogNumber ofWire Range
RatingNumberTerminalsPer Terminal (Cu/Al)
30A GDGSGK602#14-8 AWG
60-200 GDHG612342#14-4 AWG
30-200 HDHG612342#14-4 AWG
400 & 600HG6564#6 AWG-250 Kcmil
800-1200HG6788#6 AWG-250 Kcmil
HLC612
HG261234
Isolated Ground Kits
Isolated Ground Kits are available on 30-600A Heavy Duty Switches.
They are normally used on circuits with a high content of computer or
other electronic loading which require a ground which is isolated from
the building ground and neutral circuits. The kit includes both isolated
and grounded terminals as listed below.
Isolated Ground Kits
Switch
AmpereCatalogNumber of TerminalsWire Range
RatingNumberIsolatedGroundedPer Terminal (Cu/Al)
30-200HG26123422#14-4 AWG
400-600HG265644#14-2/0 AWG
22
Page 23
HA161234
HA261234
Auxiliary Contacts
Auxiliary Contacts are available only for Heavy Duty Switches. The auxiliary contacts
are available in 1 normally open and 1 normally closed or 2 normally open and
2 normally closed configurations. Siemens offers a PLC Auxiliary Switch (30-200A)
that has very low resistance for low voltage and current typical in PLC circuits.
All auxiliary contacts make after and break before the main switch contacts.
Low Current PLC Type with 1 NO & 1 NC Gold Plated Contacts
30-200HA3612341010–1/23/4–
400-1200HA3656781010–1/23/4–
HP61
Class R Fuse Clip Kits
All 30-600A General Duty and Heavy Duty
Switches are field convertible to accept
Class R Fuse Clip Kits. The kits
prevent the installation of Class H and
HR612
NOTE: For touch-up spray paint (16 oz. can) order catalog number XTP060.
Fuse Puller Kits
Fuse Puller Kits are field
installable in 30-100A Type
VBII Heavy Duty Switches
(one kit required per
switch).
K fuses (one kit required
per switch).
Fuse Puller Kits
Switch
AmpereFuse Puller Kit
RatingCatalog Number
30HP61
60HP62
100HP63
Class R Fuse Clip Kits
Catalog
NumberDescription
GSRK32130A, 240V Kit (GD only)
HR2130A, 240V Kit (HD only)
HR61230A, 600V Kit / 60A, 240V Kit
HR6260A, 600V Kit
HR63100A Kit
HR64200A Kit
HR656400A / 600A Kit
23
Page 24
General and Heavy Duty
Accessories
Class J Fuse
All 100-600A General Duty, 100-600A
240V Heavy Duty and 600V,
30-600A Heavy Duty Switches are field
convertible to accept Class J fuses by
moving the load base to
a predrilled J fuse position.
HT63
Class T Fuse Adapter Kits
(1 kit required per pole)
All 200-600A General Duty and 1001200A Heavy Duty Switches are field
convertible to accept Class T fuses. 400
& 600A switches are field convertible to
accept Class T fuses by moving the load
base to a predrilled T fuse position.
Neutral Kits
Standard Neutral Kits can be field
installed in General and Heavy
Duty Switches.
Neutral Kits
HN612
SwitchKit
AmpereCatalog
RatingNumber
30 GDW410190
30 HD, 60 GDHN612
60, 100 HD, 100 GDHN623
200HN64
400 & 600HN656
800 & 1200 VBIIHN678
Class T Fuse Adapter Kits
Catalog
NumberDescription
HT23100A, 240V Kit
HT63100A, 600V Kit
HT24200A, 240V Kit
HT64200A, 600V Kit
HX327TF800A, 240V Kit
HX367TF800A,600V Kit
HX328TF1200A, 240V Kit
HN264
200% Neutral Kits
UL listed 200% Neutrals are
available on 100-600A Heavy
Duty Switches. They are typically used
with nonlinear transformers
or where increased neutral
ampacity/ lug capacity is required.
200% Neutral Kits
Switch KitWire Range
AmpereCatalogLine & Load
RatingNumberLugs (Cu/Al)
100HN263(2) #14-1/0 AWG
200HN264(2) #6 AWG-300 Kcmil
400HN656(2) 1/0 AWG-750 Kcmil
600HN678(4) 1/0 AWG-600 Kcmil
24
Page 25
General and Heavy Duty
Hub and Lug Data
SL0420
ECHS200
Compression Lug
Neutral Barrier Kit
All Heavy Duty Switches are field con-
ECHV300
vertible for crimp type lugs. When
compression lugs are required for 30-
SSH150
100A switches, a neutral barrier kit is
required for 1-Phase, 3W or 3-Phase,
4W applications. When compression
Interchangeable Hubs
Conduit hubs are available for
lugs are required on 400-1200A
switches, lug mounting kits are
required.
Type 3R, 12 and 4/4X applications.
30-200A Type 3R Switches are
provided with a conduit hub provision
and a removable hub plate on their top
rainsheds.
Hubs
Conduit
SizeCatalog
(inches)NumberUsed On
Type 3R ➀
3/4ECHA075
1ECHA10030A GD Only
1 1/4ECHA125
3/4ECHS075
1ECHS100
1 1/4ECHS12560-200A GD
1 1/2ECHS15030-200A HD
2ECHS200
2 1/2ECHS250
2 1/2ECHV250
3ECHV300400-1200A
3 1/2ECHV350
4ECHV400
Type 4 / 4X
3/4SSH075
1SSH100
1 1/4SSH125
1 1/2SSH15030-200A
2SSH200
NOTE: 30-200A. Type 3R Switches have
removable hub plates on rainsheds. 400A and
larger Type 3R Switches have no provisions
for mounting hubs. Drill or punch hole in the
field to accommodate hub size desired.
➀ Hubs suitable for 3R Switches.
➁ Neutral Barrier kits are required on 30-100A switch only and only with 1-Phase, 3W or 3-Phase and 4W loads.
Compression lugs mounting kits are required on 400-1200A switches only.
➂ Provides mounting for a single line or load lug.
➃ Provides mounting for two compression lugs per phase on line or load one per pole required.
➄ Line lugs have wire-bending space and are UL approved for #14-6 conductors.
➅ Max. wire size for height reduced switches is 500 Kcmil (Cu/Al).
➆ All but 60A GD & Compact HD NF switches are also UL approved for #2 Cu/Al conductors.
➇ All 200A Heavy Duty Switches have a wire range & wire bending space for one # 6-300 Kcmil (Cu/Al).
Compression Lug Mounting➁
and Neutral Barrier Kits
Switch
AmpereCatalog
RatingNumberKit Description
30HCL612Neutral Barrier Kit
60 & 100 HCL623Neutral Barrier Kit
400 ➂HCL651 Pole, Compression
400 HCL656781 Pole, Compression
➃
& 600
800 –Factor y Installed Only
➃
& 1200
Lug Mounting Kit
Lug Mounting Kit
Lugs
30-100A Switches are suitable
for use with 60ºC or 75ºC wire.
100-1200A are suitable for use
with 75ºC rated wire.
Wire Ranges (Line, Load and Standard Neutral)
SwitchWire Range with
AmpereWire-Bending Space
RatingPer NEC Table 373-6Lug Range
30GD#14-8 AWG (Cu/Al)
30HD#12-6 AWG (Al) or #14-6 AWG (Cu/Al)#14-2 AWG (Cu/Al)
30A HD#14-2 AWG(Cu/AI)#14-2 AWG (Cu/AI)
oversized
➆
60
60A HD#14-1/0 AWG (Cu/Al)#14-1/0 AWG (Cu/Al)
oversized
100#14-1/0 AWG (Cu/Al)#14-1/0 AWG (Cu/Al)
200
400
600
800 (3) 1/0-750 kcmil (Cu/Al) Line and Load or(3) 1/0 AWG-750 Kcmil (Cu/Al) Line and Load
1200 (4) 1/0 AWG-750 Kcmil (Cu/Al) Line and Load (4) 1/0 AWG-750 Kcmil (Cu/Al) Line and Load
#12-2 AWG (Al) or #14-3 AWG (Cu/Al)#14-2 AWG (Cu/Al)
A tamperproof device to provide for
multiple padlocking to meet OSHA or
plant requirements. Accepts up to six
padlocks. Catalog number SL0420.
Standard Carton-12.
Kirk-Key Interlocks
Kirk-Key Interlocks are factory installed
only on Type VII Heavy Duty and Double
Throw Safety Switches.
Interlocks are used to prevent the
authorized operator from making an
unauthorized operation. The interlock
system is a simple method of applying
key interlocks to safety switches so as to
require operation in a predetermined
sequence.
Before consulting the factory, the
following information is required:
• User name and address
• Key number from lock assemblies
on any existing locks to be interlocked with
• Complete locking scheme
Consult factory for delivery.
#14-8 AWG (Cu/Al)
➅
25
Page 26
Heavy Duty
Crimp Lug Application Data
Heavy Duty Switches are UL approved to accept the following field installed compression lugs:
➀ If compression lugs are used for the neutral, order compression lug neutral barrier kit HCL612.
➁ If compression lugs are used for the neutral, order compression lug neutral barrier kit HCL623.
➂ Use compression lug mounting kit per table on previous page.
➃ Not applicable to height reduced switches.
Double throw safety switches are
intended to transfer loads from one
power source to another. All two- and
three pole double throw switches are
load side of the switching mechanism.
A cover interlock is provided on all
ampere ratings. The operating handle
may be padlocked in the OFF position.
suitable for use as service equipment.
All are UL listed. Switches are rated for
use on systems up to 10,000A when
protected with Class H fuses or
100,000A when protected with Class R
or Class T fuses¡. They can also be used
to connect a single source of power to
either of two loads. In this application it
is necessary to field modify fusible
switches so that the fuses are on the
Accessories – 4 Pole and Type "F" and "NF" 3 Pole Switches Only
Description Number
Auxiliary Switch
(two required per switch)
Ground Lug Kit
Hubs
Neutrals
(for fusible stainless and
400A Type 12 & 4X only)
➃
30-800A
30-60-100ADSG100GK
200ADSG200GK
400-600-800ADSG468GK
30-60-100A Use Type HR Hubs––
200-400A Use Type SSH 4, 4X Hubs––
600-800A Use Type SSH 4, 4X Hubs––
30-60-100ADT100NK
200A DT200NK
400A FusibleDS800NK
(1) NO, (1) NC
(2) NO, (2) NC
➄
➄
Replacement Parts – 2 and 3 Pole Type "DT" Switches Only
Description Number
Type 1, 3R & 12 Replacement Handle 30-200AHHD61234
Type 4X Replacement Handle30-200AHHD61234S
Type 4X Replacement Handle400-1200AHHD65678
➀ Use HS Type hubs for 30-200A switches.
➁ Not for fusible stainless or 400A Type 12 & 4X switches.
➂ Also for fusible stainless & 400A Type 12 & 4X switches.
Catalog
Catalog
DS200EK1
DS200EK2
➁
Catalog
Wire Ranges (Line, Load and Neutral)
per NEC requirements
➀ (3) Mounting holes supplied (1 at top).
➁ (4) Mounting holes supplied.
➂ These switches are not Type VBII design.
➃ Drip hood not shown but provided on Type 3R enclosures.
Note: For inches/ millimeters conversion, multiply inches by 25.4.
➀ Three lugs included in kit.➆ For type 4 / 4X stainless steel switches add “S” to end of catalog number.
48
➁ Includes lugs.➇ For replacement door for heavy duty switches add “DOOR” to end of switch catalog number.
➂ Lugs are not included.➈ Lugs included with line and load bases.
➃ One lug per kit.➉ Also for oversized 30A HD switches.
➄ One per switch required unless otherwise noted.Also for oversized switch HNF362RL.
➅ One required per pole.
HNB623 ➁––HH6123 ➆HM6123 ➆HL612 ➀
➆
11
HM678➈
➅➈
Page 49
Fuse Application and Selection Data
Siemens Type VBII Safety Switch
Siemens enclosed safety switches are
designed for fuse versatility. Although
Siemens is not a manufacturer of fuses,
once the type of fuse needed for a
particular application is determined, it’s
easy to select an appropriate switch.
One-Time Fuses
One-time fuses are standard for use in
situations calling for 1200 amperes or
less with maximum voltages for 250 or
600 volts. Specially designed, currentcarrying links are connected to contact
pieces at the ends of the enclosure.
When an overload occurs, the circuit
quickly opens and the arc is quenched
by granular insulating material that
surrounds the current carrying links.
Available in all classes.
The proper fuse type for the application
is selected using the following
parameters:
• Voltage requirements
• Conductor ampacity
• Horsepower requirements
• Maximum available RMS
fault-current
• UL fuse class when specified
Current Limiting Fuses
This design offers the highest degree of
circuit protection among fuses. Inside,
usually copper or silver alloy links are
embedded in pure quartz sand between
heavy copper end blocks. The special
design is fast-acting and interrupts
during the first half-cycle of a fault.
This causes a limitation of both faultpeak current and let-through
current.
Available in Classes J, L, R and T.
The compatible fusible safety switch is
selected following these parameters:
• System voltage requirements
• Fuse amp ratings
• Available fault current
• UL fuse class
• Environmental conditions
• Number of poles required
Dual-element Time-delay Fuses
Dual-element fuses may have timedelay designation since these fuses
employ two distinctly separate types
of elements. One provides overload
protection with time delay. (UL states
that time delay means having a
10-second operating delay at 500
percent of fuse label rating.) The
second provides short circuit protection
similar to a single-element fuse.
Dual-element fuses are most frequently
used on motor loads.
49
Page 50
Fuse Applications and Dimensions
A
B
C
D
E
F
G
A
E
G
C
D
B
Siemens Type VBII Safety Switch
Class R and H Fuses
Class R Application: Over-current and
short-circuit protection of motors and
transformers, service entrance equipment, feeder and branch circuits.
(General Purpose Protection)
Class R Rejection: A UL Class R fuse kit is
required that rejects lower-rated fuses
(H and K).
L601-6000A600V or lessBolt type200,000AI2t - LowMain & feeder
or less ACstandards–10,000A availablecircuits
or less ACwithout rejectionI
Class HI
250V or lessrejectionI
featuresmall percent)
Class HI
Class HI
2
t - RK5 up to 100AFeeder
p
- RK5 up to 100Acircuits
p
- Lowcircuits
p
- Slightly>Jcircuits(motor load
2
t - >RK-1Motor starting
p
- RK-1currents
2
t - <JMain & feeder
p
- <Jcircuits
p
- =Jcircuits
p
- Lowcircuits
I
5
13/8
/8
1
/8
3
/4
3
/8
* Class K5 fuses do not prohibit the use of Class H type fuses in a switch.
51
Page 52
Ratings and Test Requirements
Siemens Type VBII Safety Switch
Enclosed Switch Load Ratings
The primary functions of a fusible
enclosed switch are to carry current
continuously, to provide over
current and short-circuit protection, to
be capable of disconnecting the circuit,
and to provide means for mounting
fuses. Safety switches may also have
other capabilities covered by load break
ratings (in contrast with no-load disconnect switches), such as standard
and maximum horsepower ratings
and the ability to withstand the
maximum I2t energy let-throughs
of fuses.
All Siemens safety switches are capable
of continuously carrying their full-rated
nameplate current at rated voltage.
This capability is directly attainable
in no-fuse switches and in fusible
switches when the fuses are replaced
with copper bars, without exceeding
permissible temperature rise.
Fuses are capable of carrying their
rated current in open air. Under this
condition the fuses will not open and
will not exceed permissible temperature rise. When fuses are used in a
switch or other enclosure, a higher
ambient temperature is caused by the
switch heat and fuse-generated heat.
Since fuses are thermal acting by
design, they will not carry full current
rating at higher ambient temperatures.
To assist users of fusible equipment,
UL requires each fusible switch to carry
the statement “Continuous load current
not to exceed 80% of the rating of the
fuses employed.” Good electrical
practice may require even further deratings depending on the type of fuse,
load, altitude and ambient temperature
of the switch location.
Load Break Ratings
All Siemens safety switches are
load break rated. The load break
rating is assigned by UL after the switching unit has successfully performed the
following tests for general use enclosed
switches:
In addition to the required UL overload
testing, all Siemens VBII Safety Switches
have been tested at twelve times rated
current at 600V AC to assure compliance
to automotive and other heavy industry
requirements.
Horsepower Ratings
All Siemens safety switches, where
appropriate, are horsepower rated.
The assignment of such ratings is made
by UL only after the switching unit has
undergone tests to determine its acceptability. In addition, the unit must
successfully perform on an overload
test series which includes repeated
interruption of the locked rotor current
of the motor for which it is to be rated
as follows:
Horsepower Ratings
Max HPON/OFF OpsNumber of Cycles
Ratingper Minuteof Operation
100650
500110
Number of
Most switches have two or more
ratings for a particular voltage and
current. Siemens safety switches are UL
listed for design E horsepower ratings.
With Siemens safety switches no derating is required in most cases.
Depending on the switch and its
application, various ratings have been
achieved. All Siemens switches include
a complete list of the ratings on the
inside of the cover.
Horsepower Rating Charts
The number and variety of horsepower
ratings that can be applied to a
switching unit makes it impractical, in
most instances, to list all such ratings
on the front of the unit. Siemens does,
however, provide this data by means of
a chart on the inside cover.
Horsepower Rating Range
UL test procedure include ratings up to
500 HP. Siemens safety switch units in
appropriate sizes have successfully
passed the locked rotor current interrupting test series for ratings through
500 horsepower at both 480 and 600
volts AC and through 50 horsepower
at 600 volts DC.
Maximum Horsepower Ratings
The maximum horsepower rating is
based upon the largest rating of a time
delay fuse: 1) which can be incorporated in the switch and 2) which will
permit the motor to be started. Since
the fuse has extra time delay, it can
hold the starting current of a larger
motor longer than a standard fuse.
Standard Horsepower Rating
This rating is assigned to a switch after
it has successfully completed the locked
rotor test series, on the basis of the
largest standard fuse rating: 1) which
can be incorporated in the switch and
2) which will permit the motor to be
started. The standard fuse does not
have a designed time delay to allow for
motor starting currents.
52
Page 53
Siemens Type VBII Safety Switch
Multiple-Voltage
Horsepower Ratings
A switch may have additional standard
and maximum horse-power ratings for
different voltages. A switch that is
horsepower rated at 240V AC or 250V
DC may also have horsepower ratings
for motors on 120V AC or 125V DC
circuits.
Multipole Horsepower Ratings
A switch may have horsepower ratings
applicable to the same current and
voltage ratings but with fewer poles
if the switch is investigated and found
suitable for the assigned rating.
Short-circuit Withstandability
UL test procedures for switches and
fuses have been expanded to provide
realistic standards of performance
with respect to clearing high-level
fault currents.
These revised standards deal with the
control of destructive energy in the
shorted circuit. Two types of potential
damage are characteristic of high-level
short-circuits: mechanical and thermal.
Mechanical damage is caused by the
electromagnetic force surrounding
conductors; thermal damage is the
result of excessive current during
the fault-clearing time.
The UL fuse standard defines maximum
instantaneous peak let-through current
(lp) and maximum destructive energy
let-through (I2t) for each fuse (except
Class H). Applications of fuses and
safety switches on systems having
more than 10,000A are available.
Short circuits require selections of
the proper UL-listed fuses and switches
capable of withstanding I2t letthroughs. See chart below for withstand ratings on Siemens switches.
I2t Rated
Suitability tests for service with Class
H, R, J, L and T fuses have been
conducted. Representative switches
with test fuses connected in series
with each switch were subjected to
I2t let-through values in excess of
the capacities of the largest fuses
acceptable by the switches.
To pass the test, the switch must
remain operable after being
closed into a high-amp available
short-circuit current. The test fuse
is sized so that higher levels of
let-through current and energy will
be reached than would ever occur
during normal usage in the field.
See the chart below for I2t ratings
on Siemens switches.
Short-circuit Withstand Ratings
Fuse RatingFuse ClassGeneral DutyHeavy Duty
FusiblePlug10,000–
Non-Fusible ➀H or circuit breaker10,00010,000
➀ With fuses or circuit breaker in series with switch. Fuse or circuit breaker ampere rating cannot exceed switch ampere rating.
➁ 60A compact switches are rated 100,000 with 60A max.
1.1. Switches shall be furnished as shown on the drawings and
shall be of the type described and
specified herein.
2. STANDARDS
Switches shall comply with the following standards:
2.1 UL 98—Enclosed and Dead Front Switches
2.2 NEMA KS 1—Enclosed Switches
3. SUBMITTAL
3.1 Provide outline drawings with dimensions, conduit entry /
exit locations, cable terminal sizes and equipment ratings for
voltage, amperage, horsepower and short-circuit. They also
must include replacement parts and accessories
B. PRODUCT REQUIREMENTS
1. Switch Mechanism/Handle
1.1 Switch operating mechanism shall be nonteasible, positive,
quick-make, quick-break such that during normal operation of
the switch, the operation of the contacts shall not be capable of
being restrained by the operating handle after the closing or
opening action of the contacts has started.
1.7 All Heavy Duty switches (Type 1, 3R, 4/4X stainless steel,
4X non-metallic, 12) shall have a dual-cover interlock
mechanism to prevent unintentional opening of the switch
cover when the switch is ON and prevent turning the switch ON
when the cover is open. The cover interlock mechanism shall
have an externally operated override but the override shall not
permanently disable the interlock mechanism. The tool used to
override the cover interlock mechanism shall not be required to
enter the enclosure in order to override the interlock.
1.8 30-200A 4X stainless steel switches shall have stainless
steel interior parts as standard.
1.9 All switches shall have provisions to accept up to three
5/16 inches hasp padlocks to lock the operating handle in the
OFF position.
2. SWITCH INTERIOR
2.1 All switches shall have switch blades that are visible when
the switch is OFF and the cover is open. (Type 1, 3R, 4/4X
stainless steel, 4X non-metallic, 12).
2.2 Lugs shall be front removable and UL-listed for
60°C or 75°C conductors (30-100A), 75°C conductors (2001200A) aluminum or copper conductors. Except for 30A
General Duty line and load lugs shall be removable with no
need to remove line shields and arc suppressors.
2.3 30-100A Heavy Duty switches shall be capable of
accepting field installed fuse puller kits.
1.2 The operating handle shall be an integral part of the box
and not of the cover.
1.3 The handle position, combined with large ON and OFF
lettering on the nameplate, shall clearly indicate the switch
position.
1.4 The operating handle must be made of steel, with no
plastic parts other than the handle grip.
1.5 The operating handle shall be provided with a highly visible
red plastic grip and must allow for hook stick operation.
1.6 The operating mechanism must be made of steel, with no
plastic parts.
54
2.4 Optional copper body and crimp type lugs are to be UL
approved for field installation in Heavy Duty 30-1200A ratings.
2.5 Heavy Duty Switches all shall have all-copper current
carrying parts other than standard aluminum alloy lugs.
2.6 All current-carrying parts shall be plated to resist corrosion.
2.7 Heavy Duty switches shall have provisions for field
installable auxiliary switches. There also must be low current
PLC type auxiliary interlock available for 30-200A switches.
2.8 All Heavy Duty switches shall have spring reinforced fuse
clips.
Page 55
Siemens Type VBII Safety Switch
Suggested Specifications Continued
3. SWITCH ENCLOSURES
3.1 Switch covers shall be attached with pin-type hinges.
Except for outdoor General Duty 30A switches, top-hinged
doors are not acceptable.
3.2 Enclosures for Type 3R switches through 200A shall have
provisions for interchangeable bolt-on hubs in the top endwall.
Hubs shall be Siemens Type HS or HA hubs sized as indicated
on the plans.
3.3 Switches shall have wire-bending space and lug capacity
for one size larger Al/Cu wire than NEC and UL minimum
requirements.
3.4 The enclosure shall be finished with [gray baked polyester
paint which is electrodeposited on cleaned, phosphate pretreated steel (Type 1)], [gray baked polyester paint which is
electrodeposited on cleaned, phosphate pre-treated galvanized
steel (Type 3R & 12)], [a brush finish on type 304 stainless steel
(Type 4/4X stainless steel)].
3.5 All Heavy Duty switch enclosures shall have a formed front
flange to provide additional strength and rigidity.
3.6 Tangential knockouts shall be provided for switches rated
30-600A in Type 1 and 3R enclosures where permitted.
3.7 Cover latching means for Type 4/4X & 12 rated through
1200A shall be quick-release, lift-lever type.
4. SWITCH RATINGS
4.1 All switches shall be UL-listed.
4.2 30-200A Heavy Duty switches shall also be horsepower
rated for AC and/or DC as indicated on the plans.
4.3 Switches shall be horsepower rated for design E motors on
internal labeling.
4.4 The Heavy Duty switch UL-listed short-circuit current rating
shall be: [10,000 RMS symmetrical amperes when used with
orprotected by Class H or K fuses (30-600 amperes)]
[200,000 RMS symmetrical amperes when used with or
protected by Class R or Class J fuses (30-600 ampere switches
employing appropriate fuse rejection schemes)]. [200,000 RMS
symmetrical amperes when used with or protected by Class L
fuses (800-1200 amperes)].
4.5 All switches intended for service entrance shall be UL
approved for this application.
4.6 All Heavy Duty switches shall be I2t rated.
C. APPROVED MANUFACTURERS
1.1 Switches shall be manufactured by Siemens (no equal) or
approved equal.
3.8 Type 12 enclosures shall be dual rated as Type 3S to allow
their use in outdoor applications.
3.9 Cover viewing window shall be an available option on 30400A NEMA 12 and 4/4X stainless steel switches. The window
must allow viewing of both visible blades when the switch is
OFF and viewing of indicating fuses in 30-200A ratings.
3.10 All Heavy Duty switches shall have metal nameplates,
except for non-metallic switches, which must
have plastic nameplates.
55
Page 56
Type VBII Safety Switch Catalog Numbering System
HF 3 6 4NRCU
Switch Type
L= General Duty
10k AIC Max.
(Plug Fused
& 60A Max
Non-Fused)
G= General Duty
H= Heavy Duty
DT = Double Throw
DTG = General Duty DT
Fused or Non-Fused
F = Fused
NF = Non-Fused
Number of Poles
1 =1
2 =2
3 =3
4 =4
6 =6
Voltage
1 = 120V or 120/240V
2 = 240V
6 = 600V
Special Applications With:
CH = Crouse Hines Receptacle
CJ = Factory J Fuse Spacings
CR = Class R Clips Installed
CU = Factory Installed Copper
Wire Grips
G = Factory Installed Ground Bar
H = Height or Size Reduced
L= Oversized Enclosure
PN = Pyle National Receptacle
W = Viewing Window
Enclosure Type
Omit = Type 1, Indoor
R= Type 3R, Outdoor
S= Type 4/4X, Stainless Steel
J= Type 12, Industrial
X= Type 4/4X, Non-metallic
XL= Type 4/4X, Non-metallic less lugs
Siemens is a registered trademark of Siemens AG. Product names mentioned may be trademarks or registered trademarks of their respective
companies. Specifications are subject to change without notice.
Order # SSSA-SB03A-1206 5M1206CEG Printed in USA
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